Exactly, I had an issue with another problem too, the Two Sum problem to be specific, I contacted the support but they just told me to post about it in the discussion area.
Then I think they are just not doing anything. You contacted Support and they should have looked into it. Contact them again saying no one here seems to respond and others are facing the same issue.
Where did you send the mail to? Do write a strong mail so they look into it. Too bad they should have looked into it the first time you contacted them.